Lab values & electrolytes worksheet with answers

Free printable Lab values & electrolytes worksheet: 8 problems from easy to exam level, with an answer key. Print it or save it as a PDF.

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1.Easy

Which laboratory test is used to diagnose sickle cell disease?

  1. AHemoglobin electrophoresis
  2. BSerum ferritin and transferrin saturation
  3. CProthrombin time with INR
  4. DErythrocyte sedimentation rate
2.Easy

Which hemoglobin value in an adult woman is below the typical reference range?

  1. A12.8 g/dL (128 g/L)
  2. B9.2 g/dL (92 g/L)
  3. C14.6 g/dL (146 g/L)
  4. D13.5 g/dL (135 g/L)
3.Easy

A positive hepatitis B surface antigen (HBsAg) test means:

  1. AThe person is immune from vaccination only
  2. BThe person has never met the virus
  3. CThe person had hepatitis A in the past
  4. DThe person currently has hepatitis B infection
4.Medium

Why can a patient with liver failure have a raised INR without taking warfarin?

  1. AThe kidneys stop clearing the clotting factors from the blood
  2. BBilirubin directly destroys the clotting factors
  3. CAlbumin is a clotting factor, and its level falls
  4. DThe liver makes most clotting factors, so production falls
5.Medium

A patient is starting atorvastatin. Which laboratory test is usually checked at baseline?

  1. ALiver enzymes
  2. BBlood cultures
  3. CSerum lipase
  4. DThyroid antibodies
6.Medium

Which group of findings fits hypercalcemia?

  1. AThirst with very dilute urine as the only signs
  2. BConstipation, fatigue, confusion and kidney stones
  3. CTetany, muscle cramps and a positive Chvostek’s sign
  4. DPeaked T waves and muscle weakness only
7.Hard

A patient with sepsis has the following new results. Which set best shows organ dysfunction?

  1. AHemoglobin 12.5 g/dL, sodium 138 mEq/L, glucose 105 mg/dL
  2. BCalcium 9.4 mg/dL, phosphate 3.5 mg/dL, magnesium 1.9 mEq/L
  3. CWBC 11.5 × 10³/µL, potassium 4.2 mEq/L, albumin 3.8 g/dL
  4. DPlatelets 70 × 10³/µL, creatinine doubled, bilirubin raised
8.Hard

A patient on clozapine reports a sore throat and fever. The ANC is 400/µL (0.4 × 10⁹/L). What should the nurse do?

  1. AHalve the dose and give it with a throat lozenge
  2. BHold the clozapine and report the result at once
  3. CGive the dose with food to protect the stomach
  4. DGive the next dose and recheck the ANC next month

Answer key

  1. 1. A · Hemoglobin electrophoresis
  2. 2. B · 9.2 g/dL (92 g/L)
  3. 3. D · The person currently has hepatitis B infection
  4. 4. D · The liver makes most clotting factors, so production falls
  5. 5. A · Liver enzymes
  6. 6. B · Constipation, fatigue, confusion and kidney stones
  7. 7. D · Platelets 70 × 10³/µL, creatinine doubled, bilirubin raised
  8. 8. B · Hold the clozapine and report the result at once

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